Question

A galvanometer of resistance $G$ is converted into an ammeter using a shunt of resistance $R$. If the ratio of the heat dissipated through the galvanometer and shunt is $3:4$, then $R$ equals

• A. $\frac{4}{3}G$
• B. $\frac{3}{4}G$
• C. $\frac{16}{9}G$
• D. $\frac{9}{16}G$
• E. $G$

Hint:

For parallel circuits: same voltage, use $P = \frac{V^2}{R}$ when easier.

Answer 1

The Correct Option is D